1//go:build grpcnotrace
 2
 3/*
 4 *
 5 * Copyright 2024 gRPC authors.
 6 *
 7 * Licensed under the Apache License, Version 2.0 (the "License");
 8 * you may not use this file except in compliance with the License.
 9 * You may obtain a copy of the License at
10 *
11 *     http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 */
20
21package grpc
22
23// grpcnotrace can be used to avoid importing golang.org/x/net/trace, which in
24// turn enables binaries using gRPC-Go for dead code elimination, which can
25// yield 10-15% improvements in binary size when tracing is not needed.
26
27import (
28	"context"
29	"fmt"
30)
31
32type notrace struct{}
33
34func (notrace) LazyLog(x fmt.Stringer, sensitive bool) {}
35func (notrace) LazyPrintf(format string, a ...any)     {}
36func (notrace) SetError()                              {}
37func (notrace) SetRecycler(f func(any))                {}
38func (notrace) SetTraceInfo(traceID, spanID uint64)    {}
39func (notrace) SetMaxEvents(m int)                     {}
40func (notrace) Finish()                                {}
41
42func newTrace(family, title string) traceLog {
43	return notrace{}
44}
45
46func newTraceContext(ctx context.Context, tr traceLog) context.Context {
47	return ctx
48}
49
50func newTraceEventLog(family, title string) traceEventLog {
51	return nil
52}